.big-index {
    height: 100%;
    width: 1200px;
    margin: 0 auto;
    overflow: hidden;
}
.big-index2 {
    height: 100%;
    width: 1200px;
    margin: 0 auto;
    overflow: hidden;
    position: relative;
}
.big-index3 {
    height: 100%;
    width: 1200px;
    margin: 0 auto;
    overflow: hidden;
    position: relative;
}
.big-index4 {
    height: 100%;
    width: 1200px;
    margin: 0 auto;
    overflow: hidden;
    position: relative;
}
.public-header {
    background: url(../web/images/header.png);
    height: 814px;
    width: 100%;
    background-size: contain;
    background-repeat:no-repeat;
}

.index-list {
    width: 100%;
    height: 1710px;
    background: url(../web/images/list1.png);
}

.index-panel1 {
    width: 100%;
    height: 443px;
    background: white;
}
.index-panel2{
    width: 100%;
    height: 1010px;
    background: white;
}
.index-panel3 {
    width: 100%;
    height: 653px;
    background: #424a48;
}
.index-panel4 {
    width: 100%;
    height: 312px;
    background: white;
}
.index-footer {
    width: 100%;
    height: 1010px;
    background: url(../web/images/footer.png);
}